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We carry memory modules with only name-branded chipsets such as Micron Technology(MT), Hynix, Samsung, Siemens(Infineon), Toshiba, IBM, Goldstar(LGS), NEC. For Rambus ram we only carry samsung/NEC/infinoen/kingston brand. All memory (Sdram 168pin, DDR ram, Rambus ram) comes with 1 year warranty from invoice date with Kinetmicro.
People in the computer industry commonly use the term
"memory" to refer to RAM (Random Access Memory). A computer
uses Ram to hold temporary instructions and data needed to complete
tasks. This enables the computer's CPU (Central Processing Unit), to
access instructions and data stored in memory very quickly. The process begins when you enter a command from your
keyboard. The CPU interprets the command and instructs the hard drive
to load the command or prgram into memory. Once the data is loaded
into memory, the CPU is able to access it much more quickly than if it
had to retrieve it from the hard drive.
64mb pc100 sdram 168pin 8 chips non-ecc compatible with older computers $8 128mb pc133 sdram 168pin 4 chips non-ecc for newer computers $10 128mb pc133 sdram 168pin 8 or 16 chips non-ecc compatible with older computers $12.99 128mb pc100 sdram 168pin 8 or 16chips non-ecc compatible with older computers $12.99 256mb pc133 sdram 168pin 8chip non-ecc for newer computers $7.99 256mb pc133 sdram 168pin 16chip non-ecc compatible with older computers $7.99 256mb pc133 sdram 168pin ecc registered for server $9 256mb pc100 sdram 168pin 16chip non-ecc compatible with older computers $7.99 512mb pc133 sdram 168pin 16chip non-ecc $15.99 512mb pc133 sdram 168pin ecc registered for server $9.99
SDRAM is designed to synchronize itself with the timing of the CPU. This enables the memory controller to know the exact clock cycle when the requested data will be ready, so the CPU no longer has to wait between memory accesses. SDRAM chips also take advantage of interleaving and burst mode functions, which make memory retrieval even faster. SDRAM modules come in several different speeds so as to synchronize to the clock speeds of the systems they'll be used in. For example, PC66 SDRAM runs at 66MHz, PC100 SDRAM runs at 100MHz, PC133 SDRAM runs at 133MHz.. Sdram 168pin modules pc133 dimm are widely used in most of the Pentium 3, lower Pentium 4 and AMD Duron and Athlon systems. They are cheaper than Sdram 168pin pc-100 or pc-64 for their mass production. The 133MHz memory modules are back compatible and will work in most 100MHz and 66MHz systems, but the 66MHz won't work in any 100MHz system. The difference between 100MHz and 133MHz is not as great as that between 100MHz and 66MHz. Please check your system's memory requirement before you place the order. For older Pentium I, Pentium II or lower end of Pentium III Please use Double sided 16 chips or 18 chips of sdram. For newer Pentium III or Pentium 4 systems sindgle sided 8 chips or 4 chips sdram will work fine. DDR Sdram (Double Data Rate Synchronous Dram) memory, is an evolutionary new memory technology that doubles data throughput to the processor vs conventional Sdram. It allows the memory chip to perform transactions on both the rising and falling edges of the clock cycle. For example, with DDR SDRAM, a 100 or 133MHz memory bus clock rate yields an effective data rate of 200MHz or 266MHz. DDR is viewed as the main competition vs Rambus memory. Because DDR is fairly easy to produce using the same production systems as Sdram, it has become quite affordable. It is rapidly gaining popularity. DDR pc-2100, pc-2700 and pc-3200 represent three types of memory speed 266mhz, 333mhz and 400mhz respectively. 512mb pc2100 ddr 184pin non-ecc $13.99 512mb pc2700 ddr 184pin non-ecc $13.99 512mb pc3200 ddr 184pin non-ecc $13.99 1GB pc2700 ddr 184pin non-ecc $29.99 1GB pc3200 ddr 184pin non-ecc $29.99 1gb DDR2 pc4200 533 240pin non-ecc $24.99 1GB DDR2 pc5300 667 240pin non-ecc $24.99 2gb DDR2 pc5300 667 240pin non-ecc $45.99 2GB DDR2 pc6400 800 240pin non-ecc $45.99 512mb DDR pc2100 ecc registered 266 server 184pin $10.99 1GB DDR pc2100 ecc registered server memory 184pin $25.99 2GB DDR pc2100 ecc registered server memory 184pin $55.99 2GB DDR pc2700 ecc registered server memory 184pin $55.99
Rambus
rdram 184pin 128mb pc800 rdram 184pin non-ecc $9.99 128mb pc800 rdram 184pin ecc $9.99 256mb pc800 rdram 184pin non-ecc $15.99 256mb pc800 rdram 184pin ecc $15.99 256mb pc1066 rdram 184pin non-ecc $65 512mb pc800 rdram 184pin ecc $39.99 512 pc800 rdram rambus 184pin non-ecc $39.99 256mb pc1066 rdram 232pin 32bit ecc $69
Standard desk-top memory modules are non-ECC (error
correction), non-registered, and non-buffered memory modules. ECC and
registered memory modules are normally for servers that require these
features and are more expensive. What're buffered and ECC memory modules? They have an extra bit to every
transaction for error checking. They are however about 3% slower than
unbuffered memory. These are used mainly for mission-critical systems
such as servers. They are often more expensive and not required on most
desk-top systems. They are "downgrade" compatible, meaning
they will work in a regular system if you happen to have them. Check
your system manual to see if it requires buffered and/or ECC memory |
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